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10000 Watt
Residential Generator
System
Operator’s Manual
GEN10AD
2
Thank you for purchasing this quality-built Rheem / Ruud residential standby generator. We are pleased that you’ve placed
your confidence in the Rheem or Ruud brand. When operated and maintained according to the instructions in this manual,
your Rheem / Ruud generator will provide many years of dependable service.
This manual contains safety information to make you aware of the hazards and risks associated with residential standby
generators and how to avoid them. Because Rheem does not necessarily know all the applications this equipment could be
used for, it is important that you read and understand these instructions thoroughly before attempting to start or operate this
equipment. Save these instructions for future reference.
This residential standby generator requires professional installation before use. Refer to the separate
Installation manual for instructions on safe installation procedures. Your installer should follow the instructions completely.
Where to Find Us
You never have to look far to find support and service for your generator. Consult your Yellow Pages. There are many Rheem
and Ruud authorized service dealers who provide quality service. You can also contact Rheem/Ruud Customer Service by
phone at (877) 369-9400.
Generator and engine model and serial numbers should be recorded in the Installation Manual.
Rheem Sales Company
Randleman, NC 27317
(877) 369-9400
Copyright © 2008. All rights reserved. No part of this material
may be reproduced or transmitted in any form without the express
written permission of Rheem Sales Company.
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Table of Contents
Important Safety Instructions. . . . . . . . . . . . . . . . . . . . . . . . 4
Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
For the Home Owner:. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Owner Orientation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Fuel Factors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Generator Location. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Essential Circuits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Delivery Inspection. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Features and Controls. . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Automatic Operation Sequence . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Setting Exercise Timer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Fault Detection System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Generator Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Engine Oil. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Battery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Storage. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Troubleshooting. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Warranty. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Product Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
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Important Safety Instructions
SAVE THESE INSTRUCTIONS - This manual contains
important instructions that should be followed during
installation and maintenance of the generator and batteries.
The safety alert symbol ( ) is used with a signal word
(DANGER, CAUTION, WARNING), a pictorial and/or a
safety message to alert you to hazards. DANGER indicates
a hazard which, if not avoided, will result in death or serious
injury. WARNING indicates a hazard which, if not avoided,
could result in death or serious injury. CAUTION indicates
a hazard which, if not avoided, might result in minor or
moderate injury. NOTICE indicates a situation that could
result in equipment damage. Follow safety messages to
avoid or reduce the risk of injury or death.
The manufacturer cannot possibly anticipate every possible
circumstance that might involve a hazard. The warnings in
this manual, and the tags and decals affixed to the unit are,
therefore, not all-inclusive. If you use a procedure, work
method or operating technique that the manufacturer does
not specifically recommend, you must satisfy yourself that
it is safe for you and others. You must also make sure that
the procedure, work method or operating technique that you
choose does not render the generator system unsafe.
NOTE: Your generator is equipped with a spark arrester
muffler. The spark arrester must be maintained in effective
working order by the owner/operator. In the State of
California, a spark arrester is required by law (Section 4442
of the California Public Resources Code). Other states may
have similar laws. Federal laws apply on federal lands.
Hazard Symbols and Meanings
WARNING
Running engine gives off carbon monoxide, an
odorless, colorless, poison gas.
Breathing carbon monoxide can cause
headache, fatigue, dizziness, vomiting,
confusion, seizures, nausea, fainting or death.
Operate generator ONLY outdoors.
Install a battery operated carbon monoxide alarm near
the bedrooms.
Keep exhaust gas from entering a confined area through
windows, doors, ventilation intakes, or other openings.
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WARNING
Storage batteries give off explosive hydrogen
gas during recharging.
Slightest spark will ignite hydrogen and
cause explosion.
Battery electrolyte fluid contains acid and is
extremely caustic.
Contact with battery contents will cause severe
chemical burns.
A battery presents a risk of electrical shock and
high short circuit current.
DO NOT dispose of battery in a fire. Recycle battery.
DO NOT allow any open flame, spark, heat, or lit cigarette
during and for several minutes after charging a battery.
DO NOT open or mutilate the battery.
Wear protective goggles, rubber apron, rubber boots and
rubber gloves.
Remove watches, rings, or other metal objects.
Use tools with insulated handles.
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WARNING
The engine exhaust from this product contains
chemicals known to the State of California
to cause cancer, birth defects, or other
reproductive harm.
WARNING
Certain components in this product and related
accessories contain chemicals known to
the State of California to cause cancer, birth
defects, or other reproductive harm. Wash
hands after handling.
Save These Instructions
Explosion
Fire
Electrical Shock
Rotating Parts
Hot Surface
Toxic Fumes
Chemical BurnExplosive PressureAuto Start
Lift Hazard
Read Manual
5
WARNING
Generator produces hazardous voltage.
Failure to properly ground generator can result
in electrocution.
Failure to isolate generator from power utility
can result in death or injury to electric utility
workers due to backfeed of electrical energy.
When using generator for backup power, notify
utility company.
DO NOT touch bare wires or bare receptacles.
DO NOT use generator with electrical cords which are
worn, frayed, bare or otherwise damaged.
DO NOT handle generator or electrical cords while
standing in water, while barefoot, or while hands or feet
are wet.
If you must work around a unit while it is operating,
stand on an insulated dry surface to reduce
shock hazard.
DO NOT allow unqualified persons or children to operate
or service generator.
In case of an accident caused by electrical shock,
immediately shut down the source of electrical power
and contact the local authorities. Avoid direct contact
with the victim.
Despite the safe design of the residential generator,
operating this equipment imprudently, neglecting its
maintenance or being careless can cause possible injury
or death.
Remain alert at all times while working on this
equipment. Never work on the equipment when you are
physically or mentally fatigued.
Before performing any maintenance on the generator,
disconnect the battery cable indicated by a NEGATIVE,
NEG or (-) first. When finished, reconnect that
cable last.
After your generator system is installed, the generator
may crank and start without warning any time there is a
power failure. To prevent possible injury, always set the
generator’s system switch to OFF, remove the service
disconnect from the disconnect box AND remove the
15 Amp fuse BEFORE working on the equipment.
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WARNING
Propane and Natural Gas are extremely
flammable and explosive.
Fire or explosion can cause severe burns
or death.
Install the fuel supply system according to applicable
fuel-gas codes.
Before placing the generator into service, the fuel system
lines must be properly purged and leak tested.
After the generator is installed, you should inspect the
fuel system periodically.
NO leakage is permitted.
DO NOT operate engine if smell of fuel is present or other
explosive conditions exist.
DO NOT smoke around the generator. Wipe up any oil
spills immediately. Ensure that no combustible materials
are left in the generator compartment. Keep the area near
the generator clean and free of debris.
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WARNING
Contact with muffler area can result in
serious burns.
Exhaust heat/gases can ignite combustibles or
structures causing a fire.
DO NOT touch hot parts and AVOID hot exhaust gases.
Allow equipment to cool before touching.
DO NOT install the generator closer than 5 feet (1.5m)
from any combustibles or structures with combustible
walls having a fire resistance rating of less than 1 hour.
Keep at least minimum distances shown in General
Location Guidelines to insure for proper generator
cooling and maintenance clearances.
Code of Federal Regulation (CFR) Title 36 Parks, Forests,
and Public Property require equipment powered by an
internal combustion engine to have a spark arrester,
maintained in effective working order, complying to
USDA Forest service standard 5100-1C or later revision.
In the State of California a spark arrester is required
under section 4442 of the California Public resources
code. Other states may have similar laws.
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WARNING
Starter and other rotating parts can entangle
hands, hair, clothing, or accessories.
NEVER operate generator without protective housing
or covers.
DO NOT wear loose clothing, jewelry or anything that
may be caught in the starter or other rotating parts.
Tie up long hair and remove jewelry.
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CAUTION
Installing the 15A fuse could cause the engine
to start.
Observe that the 15 Amp fuse has been removed from
the control panel for shipping.
DO NOT install this fuse until all plumbing and wiring has
been completed and inspected.
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CAUTION
Excessively high operating speeds increase risk of injury
and damage to generator.
Excessively low speeds impose a heavy load.
DO NOT tamper with governed speed. Generator supplies
correct rated frequency and voltage when running at
governed speed.
DO NOT modify generator in any way.
•
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notice
Exceeding generators wattage/amperage capacity can
damage generator and/or electrical devices connected
to it.
See Essential Circuits.
Start generator and let engine stabilize before connecting
electrical loads.
•
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notice
Improper treatment of generator can damage it and
shorten its life.
Use generator only for intended uses.
If you have questions about intended use, ask dealer or
contact Rheem.
Operate generator only on level surfaces.
Adequate, unobstructed flow of cooling and ventilating
air is critical to correct generator operation.
The Oil Fill, Oil Drain and the Control Panel doors must
be installed whenever the unit is running.
DO NOT expose generator to excessive moisture, dust,
dirt, or corrosive vapors.
Despite the safe design of the residential generator,
operating this equipment imprudently, neglecting its
maintenance or being careless can cause possible injury
or death.
Remain alert at all times while working on this
equipment. Never work on the equipment when you are
physically or mentally fatigued.
DO NOT start engine with air cleaner or air cleaner
cover removed.
DO NOT insert any objects through cooling slots.
DO NOT use the generator or any of its parts as a step.
Stepping on the unit can cause stress and break parts.
This may result in dangerous operating conditions from
leaking exhaust gases, fuel leakage, oil leakage, etc.
If connected devices overheat, turn them off and
disconnect them from generator.
Shut off generator if:
-electrical output is lost;
-equipment sparks, smokes, or emits flames;
-unit vibrates excessively.
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7
Safety Label Locations
Installation
We sincerely appreciate your patronage. For this reason,
Rheem has made every effort to provide for a safe,
streamlined and cost-effective installation. Because each
installation is unique, it is impossible to know of and advise
the trade of all conceivable procedures and methods by
which installation might be achieved. Neither could we know
of possible hazards and/or the results of each method or
procedure. For these reasons,
Only current licensed electrical and plumbing
contractors should attempt residential generator
system installations. Installations must strictly
comply with all applicable codes, industry
standards and regulations.
Your Rheem residential generator is supplied with this
“Operator’s Manual” and a separate “Installation Manual”.
These are important documents and should be retained by
the owner after the installation has been completed.
For the Home Owner:
To help you make informed choices and communicate
effectively with your installation contractor(s),
Read and understand Owner Orientation in
this manual before contracting or starting your
residential generator installation.
To arrange for proper installation, contact the store at which
you purchased your Rheem residential generator, your
dealer, a licensed electrician or your utility power provider.
The residential generator warranty is VOID unless
the system is installed by licensed electrical and
plumbing professionals.
The Emission Control System for this generator is warranted
for standards set by the U.S. Environmental Protection
Agency and by the California Air Resources Board (CARB).
For the Installing Dealer/Contractor:
For most applications, the Installation manual contains all
the information required to properly install and start the
residential generator. This Operator’s Manual describes
essential circuit selection, routine operation and owner
maintenance procedures. If you need more information, call
(877) 369-9400, between 8:00 AM and 5:00 PM CT.
Owner Orientation
This section provides residential generator owners with the
information necessary to achieve the most satisfactory and
cost effective installation possible.
The illustrations are for typical circumstances and are meant
to familiarize you with the installation options available with
your residential generator. A thorough understanding of
these options will provide fundamental control over the cost
of your installation, as well as ensure your final satisfaction
and security.
Federal and local codes, appearance, noise levels, fuel types,
and distances are the factors that must be considered when
negotiating with an installation professional. Remember
that as the distance from the existing electrical service and
gaseous fuel supply increases, and the number of 90 degree
bends in the fuel supply increases; compensations in piping
and wiring materials must be made. This is necessary to
comply with local codes and overcome electrical voltage
drops and gaseous fuel pressure drops.
The factors mentioned above will have a direct
affect on the overall price of your residential
generator installation.
NOTE: In some areas you may need to acquire electrical
permits for installing the residential generator, building
permits for installing gas lines, and permits for noise
allowances. Your installer should check your local codes
AND obtain the permits before installing the system.
Fuel Factors
An important consideration affecting the entire installation
is the type of fuel used by your residential generator. This
generator system was factory tested and adjusted using
either LP vapor or natural gas. For proper engine function,
factors that are inherent to each of these fuels, your
location and the duration of possible utility interruptions are
important considerations in the following fuel guidelines:
• Use clean, dry fuel, free of moisture or any
particulate material. Using fuels outside the following
recommended values may cause performance
problems.
• In engines set up to run on propane (LP), commercial
grade HD5 propane with a minimum fuel energy of
2500 BTUs/ft3 with maximum propylene content of
5% and butane and heavier gas content of 2.5% and
minimum propane content of 90%.
WARNING
Propane and Natural Gas are extremely
flammable and explosive.
Fire or explosion can cause severe burns
or death.
The residential generator is equipped with an automatic
safety gas “fuel shut-off” valve.
DO NOT operate the equipment if the “fuel shut-off” valve
is missing or inoperative.
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Power Decrease at High Altitude or High Temperature
Air density is less at high altitudes, resulting in less available
engine power. Specifically, engine power will decrease 3.5%
for each 1,000 feet (300 meters) above sea level and 1% for
each 10° F (5.6°C) above 77°F (25°C). Make sure you and
your installer consider these factors when determining total
generator load.
8
Generator Location
The actual physical location of your residential generator has
a direct affect on:
1. The amount of plumbing required to fuel
your generator.
2. The amount of wiring required to control and connect
your generator.
NOTE: Specific location guidelines are discussed in the
Installation Manual. Acquaint yourself with that information
and confer with your installer. Be sure to ask how your site
might affect installation costs and compliance with local
codes and standards.
Generator Clearances
The generator must be installed outdoors. DO NOT install
generator where exhaust gas could accumulate and enter
inside or be drawn into a potentially occupied building.
Ensure exhaust gas is kept away from any windows, doors,
ventilation intakes or other openings that can allow exhaust
gas to collect in a confined area. Prevailing winds and air
currents should be taken into consideration when positioning
generator. See the Installation Manual for full details on safe
generator location.
WARNING
Exhaust heat/gases can ignite combustibles or
structures causing a fire.
DO NOT install the generator closer than 5 feet (1.5m)
from any combustibles or structures with combustible
walls having a fire resistance rating of less than 1 hour.
Keep at least minimum distances shown in General
Location Guidelines in Installation Manual to insure for
proper generator cooling and maintenance clearances.
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Essential Circuits
As a residential generator owner, it is important that
you clearly identify the circuits in your building that are
“essential” to you.
It is also important that your installer understand which
circuits you want to include as “Essential Circuits”.
Depending on the power consumed by these circuits, most
or all of them can be switched to the residential generator for
the duration of normal power interruption.
The wattage reference table that follows will assist you with
your decision-making process. It provides the wattage used
by many ordinary household devices. Use it as a guide when
selecting your essential circuits. Review this information with
your installer and ask about any technical considerations that
might affect your installation. This chart serves as a guide
only. For exact wattage use an appropriate wattage meter
Device
Running
Watts
Air Conditioner (12,000 Btu)* 1700
Air Conditioner (24,000 Btu)* 3800
Air Conditioner (40,000 Btu)* 6000
Battery Charger (20 Amp) 500
Circular Saw (6-1/2”) 800 to 1000
Clothes Dryer (Electric)* 5750
Clothes Dryer (Gas)* 700
Clothes Washer* 1150
Coffee Maker 1750
Compressor (1 HP)* 2000
Compressor (1/2 HP)* 1400
Compressor (3/4 HP)* 1800
Curling Iron 700
Dehumidifier* 650
Electric Blanket 400
Electric Range (per element) 1500
Electric Skillet 1250
Freezer* 700
Furnace Fan (1/2 HP)* 800
Garage Door Opener* 500 to 750
Hair Dryer 1200
Hand Drill 250 to 1100
Iron 1200
Jet Pump* 800
Light Bulb 100
Microwave Oven 700 to 1000
Milk Cooler* 1100
Oil Burner on Furnace 300
Oil Fired Space Heater (140,000 Btu) 400
Oil Fired Space Heater (85,000 Btu) 225
Radio 50 to 200
Refrigerator 700
Slow Cooker 200
Submersible Pump (1 HP)* 2000
Submersible Pump (1/2 HP)* 1500
Submersible Pump (1-1/2 HP)* 2800
Sump Pump* 800 to 1050
Table Saw (10”)* 1750 to 2000
Television 200 to 500
Toaster 1000 to 1650
*Allow three (3) times listed watts for starting device
9
Essential Circuit Selection
When selecting the essential circuits that will be switched
to “Standby Power,” it is important that the sum of the
combined circuit loads does not exceed the wattage/
amperage capacity of the generator. To help you with your
selection of essential circuits, please consider the following:
• Add up the total wattage of all electrical devices to
be connected at one time. This total should NOT be
greater than the generator’s wattage capacity.
The rated wattage of lights can be taken from light
bulbs. The rated wattage of tools, appliances and
motors can usually be found on a data plate or label
affixed to the device.
• If the appliance, tool or motor nameplate does not
list wattage, multiply volts times the ampere rating to
determine watts (Volts x Amps = Watts).
Some electric motors (induction types) require about
three times more watts of power for starting than for
running. This surge lasts for only a few seconds. Be
sure you allow for this high starting wattage when
selecting electrical devices that will be energized by the
residential generator:
• Figure the watts required to start the largest motor.
• Add that to the total running watts of all other
connected loads.
This Rheem residential generator complies with the
following “stationary standby power rating”:
The standby power rating is applicable for supplying
power for the duration of normal power interruption. No
sustained overload capability is available for this rating.
This rating is applicable to installations served by
a reliable normal utility source. This rating is only
applicable to variable loads with an average load factor
of 80% of the standby rating. The standby rating is
only applicable for optional standby power where
the generator set serves as the backup to the normal
utility source.
Use the wattage reference table provided and mark those
circuits you consider “critical” or “essential”. Make sure you
and your installer consider the system’s altitude above sea
level and the ambient temperature range when determining
total generator load.
IMPORTANT: When using the 100 Amp or 200 Amp
transfer switch with the residential generator, you must turn
off any non- essential loads. Failure to turn off non-essential
loads could overload the generator causing it to shut down.
Some examples of non-essential loads are as follows:
• Pool pump
• Hot tub
• Electric hot tub and/or pool heaters
• Central air conditioners
• Electric hot water heaters
• Electric range and/or oven
• Arc welder
• Non essential electric heaters
Delivery Inspection
Carefully inspect the residential generator for any damage
that may have occurred during shipment.
IMPORTANT: If loss or damage is noted at time of
delivery, have the person(s) making delivery note all
damage on the freight bill and affix his signature under the
consignor’s memo of loss or damage. If loss or damage is
noted after delivery, separate the damaged materials and
contact the carrier and your installer for claim procedures.
Missing or damaged parts are not warranted.
The residential generator is supplied with:
• Home generator
• Pre-attached mounting pad
• One flexible hook-up hose
• Installation and Start-up manual
• Operator’s manual
• Installation checklist
• 350 CCA AGM starting battery
• Touch up paint
• Oil drain tray
• Roof hardware bag
• One spare 15A fuse
• 2 Pole connector (for 240V from house)
• 10 Pole connector (for sensing and control wires)
• Remote LED Indicator kit (red LED/plate/screws)
To be supplied by Installer:
• Connecting wire and conduit
• Fuel supply valves/plumbing
• Various specialty tools/equipment
10
Features and Controls
Residential Generator
Read this Operator’s Manual and Important Safety Instructions before operating your generator.
Compare the illustrations with your generator to familiarize yourself with the locations of various controls and
adjustments. Save this manual for future reference.
Generator is shown with roof, plastic access cover and
control panel cover removed for clarity.
A - Air Cleaner — Uses a dry type filter element and foam
precleaner to protect engine by filtering dust and debris
out of intake air.
B - Engine Label — Identifies engine model and type.
C - Oil Fill Cap/Dipstick — Check and fill engine with
recommended oil here.
D - Control Panel — Used for various test, operation and
maintenance functions. See System Control Panel on
the next page.
E - Oil Drain Hose — Located inside access cover on
side panel. Provided to facilitate oil changing.
F - Unit Identification Label — Identifies unit by
serial number.
G - Battery — 12 Volt DC battery provides power to start
the engine.
H - Lifting Pocket — Provided at each corner for lifting
the generator.
J - Fuel Inlet — Attach appropriate fuel supply to
generator here.
K - Exhaust Port — High-performance muffler lowers
engine noise to comply with most residential codes.
L - Oil Filter — Filters engine oil to prolong generator life.
D
A
C
E
B
G
K
H
J
L
F
11
System Control Panel
Compare this Control Panel illustration with your generator to familiarize yourself with the location of these important controls:
A - Set Exercise Switch — Used to set the exercise
cycle start time. Exercise cycle only occurs in
AUTO mode.
B - Circuit Breaker — Protects the generator from shorts
and other over-current conditions. Must be ON to
supply power to the Automatic Transfer Switch.
C - 15 Amp Fuse — Protects the generator DC control
circuits. If the fuse has ‘blown’ (melted open) or was
removed, the engine cannot crank or start. Replace the
fuse using only an identical ATO 15A fuse.
D - System Switch — This two-position switch is the
most important control on the system and is used as
follows:
• “AUTO” position is the normal operating position.
If a utility power outage is sensed, the system will
start the generator. When utility power is restored,
AUTO lets the engine stabilize internal temperatures,
shuts off the generator, and waits for the next utility
power outage.
• “OFF” position turns off running generator, prevents
unit from starting and resets any detected faults.
E - Manual Over-Ride — With system switch in AUTO
position, push the manual over-ride button for six
seconds to start the generator. To turn off the generator,
push and hold the manual over-ride button until
engine stops.
F - Digital Display — Displays the total number of
hours the generator has been running and fault
codes. Used to schedule maintenance tasks and for
troubleshooting operational problems with the residential
generator. All fault conditions are described in Fault
Detection System.
B
A
C
D
E
F
12
Access Covers
The residential generator is equipped with an enclosure
that has a removable roof and an access cover for the
control panel.
To Remove Roof:
Remove the four screws and lift off.
To Remove Access Cover:
1. Remove roof as described above.
2. Remove screw at top of access cover.
3. Pull access cover outward (away) from unit while
pulling cover upward and out of base. Cover will
pull free.
To Install Access Cover and Roof:
1. Guide bottom of access cover into base.
2. Push access cover until it is flush with sides.
3. Replace cover screw.
4. Replace roof and screws.
Operation
Important Owner’s Considerations
Engine Oil
notice
Any attempt to crank or start the engine before it has
been properly serviced with the recommended oil will
result in equipment failure.
Refer to Maintenance and engine manual for oil fill
information.
Damage to equipment resulting from failure to follow this
instruction will void engine and generator warranty.
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This engine is shipped from the factory filled with the
recommended oil. Before starting the engine, check oil level
and ensure that engine is serviced as described in the engine
operator’s manual. See Engine Oil in Maintenance.
Battery
The residential generator is supplied with a valve-regulated
rechargeable 12 Volt battery. The battery cables are
connected at the factory.
WARNING
Battery posts, terminals and related
accessories contain lead and lead compounds
- chemicals known to the State of California
to cause cancer and reproductive harm. Wash
hands after handling.
With the battery installed, all wiring to transfer switch and
home generator completed, utility power supplied to the
Automatic Transfer Switch, and the unit in AUTO mode,
the battery receives a trickle charge while the engine is not
running. The trickle charge cannot be used to recharge a
battery that is completely discharged.
15 Amp Fuse
The generator’s 15 Amp fuse was removed at the factory to
prevent the unit from starting during shipping. Your installer
will ensure the fuse is properly installed upon completion of
the installation.
Automatic Operation Sequence
The generator’s control panel houses a logic control circuit
board. This control board constantly monitors utility power
source voltage. Should that voltage drop below a preset
level, control board action will signal the engine to crank
and start.
When utility source voltage is restored above a preset
voltage level, the engine is signaled to shut down.
The actual system operation is not adjustable and is
sequenced by sensors and timers on the control board,
as follows:
Utility Voltage Dropout Sensor
• This sensor monitors utility source voltage.
• If utility source voltage drops below about 70 percent
of the nominal supply voltage, the sensor energizes
a 10 second timer. The timer is used to ‘sense’
brown-outs.
• Once the timer has expired, the engine will crank
and start.
13
Utility Voltage Pickup Sensor
This sensor monitors utility power supply voltage. When that
voltage is restored above 80 percent of the nominal source
voltage, a time delay starts timing and the engine will go to
engine cool-down.
Engine Cool-down Timer
• When the load is transferred back to the utility power
source, the engine cool-down timer starts timing.
• The timer will run for about one minute, then the
generator will stop.
• Minimum engine run time is 5 minutes.
To select automatic operation, do the following:
1. Confirm 15 Amp fuse is installed in control panel.
2. Set service disconnect or main distribution panel circuit
breaker that sends utility voltage to the transfer switch
to ON.
3. Set the generator’s main circuit breaker to its
ON position.
4. Set the system switch to AUTO.
CAUTION
With the system switch set to AUTO, the
engine may crank and start at any time
without warning.
To prevent possible injury that may be caused by such
sudden starts, always set the system switch to OFF if
performing maintenance on the system.
Remove the 15 Amp fuse before working on or around
the generator or transfer switch.
•
•
Checking Automatic Operation
To check the system for proper automatic operation, proceed
as follows:
1. Turn OFF the service disconnect or main distribution
panel circuit breaker sending power to the automatic
transfer switch.
The engine will crank and start when the utility voltage
drops out and the sensor has timed out. Let the system
go through its entire automatic operation sequence.
2. With the generator supplying voltage its loads, turn ON
the service disconnect or main distribution panel circuit
breaker that supplies utility power to the automatic
transfer switch.
3. The automatic transfer switch will transfer loads back
to the utility power after 5 minute minimum run time
and utility is restored.
4. The generator will run for an additional one minute for
engine cool down, then shut down.
NOTE: If utility is restored and generator does not shut
down after 10 minutes, set system switch to OFF and
contact your installer or local service center.
This completes the test procedures for automatic operation.
The residential generator will now start automatically
when utility power is lost and will supply power to the
transfer switch.
Setting Exercise Timer
The residential generator is equipped with an exercise
timer that will start and exercise the system once every
seven days. During this exercise period, the unit runs for
approximately 20 minutes and then shuts down. Electrical
load transfer DOES NOT occur during the exercise cycle
(unless an utility power outage occurs).
A button on the control panel is labeled “Set Exercise”
(see System Control Panel). The specific day and the
specific time of day this button is pressed is programmed
into the control board memory. This date and time is then
used to automatically initiate the system exercise cycle. The
“SET EXERCISE” legend on the control panel will flash until
the set exercise cycle is set.
To perform the Set Exercise procedure:
1. Choose the day and time you want your residential
generator to exercise.
2. On that day and time, press and hold down the
“Set Exercise” button for three seconds.
NOTE: “SET EXERCISE” will flash until the button is
pressed for three seconds, then “SET EXERCISE” will
illuminate for 5 seconds, and finally turn off.
3. Seven days later the unit will then start and run it’s
20 minute exercise cycle.
For example, if you press the “Set Exercise” button on
Sunday morning at 10:00 AM, the unit will run an exercise
cycle the following Sunday at 10:00 AM (+/- 1/2 hour).
NOTE: “Set Exercise” will only work if the unit is in
the AUTO mode and this exact procedure is followed.
The exerciser will need to be re-set if the 15 Amp fuse
is removed or changed, or if the 12 Volt DC battery is
disconnected.
If you want to change the day and time the unit exercises,
simply perform the “Set Exercise” procedure at the exact
weekday and time you want it to take place.
14
Maintenance
Servicing the System
To service system:
1. Remove 15 Amp fuse from control panel.
2. Set the system switch to OFF.
3. Set the generator’s main circuit breaker to its
OFF position.
4. Utility voltage is present. Disconnect power before
servicing by removing the two fuses from the
transfer switch.
Fault Detection System
The generator may have to run for long periods of time
with no operator present. For that reason, the system is
equipped with sensors that automatically shut down the
generator in the event of potentially damaging conditions,
such as low oil pressure, high temperature, over speed, and
other conditions.
The generator’s control panel has a digital display that shows
fault codes, like “FC_1”. The table below lists the detected
fault, the fault code as displayed on the control panel, and
the number of LED flashes (also described as ‘blinks’) seen
on the remote LED indicator.
Fault Description Fault Codes LED Flashes
Low battery voltage FC_1 1
Low oil pressure FC_2 2
Low voltage FC_3 3
Engine fails to start FC_4 4
Low frequency FC_5 5
Engine overspeed FC_6 6
High temperature FC_7 7
Transfer switch fault FC_8 8
The remote LED indicator is installed at a convenient inside
location. The LED will remain lit when the generator is in
AUTO. The LED will turn on and off in a series of blinks that
correspond to the fault detected in your residential generator.
The blink pattern is repeated with a brief pause between each
series of blinks.
Reset Fault Detection System
The operator must reset the fault detection system each time
it activates. To do so, place the system switch in the OFF
position for 5 seconds or more. Remedy the fault condition,
then return the residential generator to service by placing the
system switch in the AUTO position.
A description of each fault and suggested remedies are
as follows:
No LED - Discharged Battery
If there is a detected fault condition but the LED is not
blinking, this is because the battery is completely discharged.
To remedy the problem, remove the 15 Amp fuse and
disconnect the battery from the generator. Take the battery
to a local battery store for analysis. Replace ONLY with same
type battery as described in Battery in Operation. Replace
the battery after it has been fully recharged, connecting the
NEGATIVE cable last. Then install the 15 Amp fuse in the
control panel.
NOTE: With the battery installed, all wiring to transfer
switch and residential generator completed, utility power
supplied to the automatic transfer switch, and the unit in
AUTO mode, the battery receives a trickle charge while
the engine is not running. The trickle charge is not able
to recharge a battery that is completely discharged. See
Battery in Maintenance.
Low Battery Voltage (FC_1)
This fault is indicated by fault code FC_1 and one blink on
the LED indicator. This condition occurs if the generator
cannot start because the starting battery output power is
below that needed to crank the engine. Causes for this
problem may be a faulty battery or battery charge circuit.
To remedy the problem, contact your local service center
to check the battery charge output. Remove the 15 Amp
fuse and disconnect the battery from the generator. Take
the battery to a local battery store for analysis. Replace
ONLY with same type battery as described in Battery
in Operation.
Replace the battery after it has been fully recharged,
connecting the NEGATIVE cable last. Then install the 15 Amp
fuse in control panel and reset exercise timer. See Setting
Exercise Timer in Operation.
Low Oil Pressure (FC_2)
This fault is indicated by fault code FC_2 and two blinks on
the remote LED indicator. The unit is equipped with an oil
pressure switch (A).
A
15
The oil pressure switch uses normally closed contacts that
are held open by engine oil pressure during operation.
Should oil pressure drop below the 8 psi range, switch
contacts close and the engine is shut down.
To remedy the low oil pressure condition, add the
recommended oil to the FULL mark on the dipstick.
If the low oil pressure condition still exists, the engine will
start, then shut down after about 20 seconds. The fault code
will appear and the LED will flash. In this case, contact a
Rheem Authorized Dealer.
Low Voltage (Generator, FC_3)
This fault is indicated by fault code FC_3 and three blinks on
the LED indicator. This condition is caused by a restriction in
the fuel flow, a broken or disconnected signal lead, a failed
alternator winding, the control panel circuit breaker is open,
or the generator is overloaded.
To remedy the problem, contact your installer or a Rheem
Authorized Dealer.
Engine Fail To Start (FC_4)
This fault is indicated by fault code FC_4 and four blinks on
the LED indicator. This feature prevents the generator from
damaging itself if it continually attempts to start in spite
of another problem, such as no fuel supply. Each time the
system is directed to start, the unit will crank for 10 seconds,
pause for 10 seconds, and repeat. If the system does not
begin producing electricity after approximately 2 minutes,
the unit will stop cranking and the LED will blink.
Check to make sure the generator’s main circuit breaker is in
the ON position in order for the sensing leads to verify that
the unit is running.
The most likely cause of this problem is no fuel supply.
Check the inside and outside fuel shut off valves to ensure
they are fully open. Other causes could be failed spark
plug(s), failed engine ignition, or the engine air filter
is clogged. You may need to contact your installer for
assistance if you can’t remedy these problems.
Low Frequency (FC_5)
This fault is indicated by fault code FC_5 and five blinks on
the LED indicator. This feature protects devices connected
to the transfer switch by shutting the generator down
if the engine runs slower than 55 Hz for three seconds.
This condition is caused by a failed engine governor or by
excessive loads on the generator. To remedy the problem,
contact your installer or a Rheem Authorized Dealer.
Engine Overspeed (FC_6)
This fault is indicated by fault code FC_6 and six blinks on
the LED indicator. This feature protects devices connected
to the transfer switch by shutting the generator down if
the engine happens to run faster than the preset limit. The
overspeed fault is detected as follows:
• If the generator output frequency is 65-70 Hz, after
three seconds, the generator will shut down.
• If the generator output frequency is greater than 70 Hz,
the generator will shut down immediately.
This condition is caused by a failed engine governor. To
remedy the problem, contact your installer or a Rheem
Authorized Dealer.
High Temperature (FC_7)
This fault is indicated by fault code FC_7 and seven blinks
on the LED indicator. The contacts of the temperature switch
(A) are normally open. If the engine oil temperature exceeds
approximately 148.9°C (300°F), the fault is detected and the
engine shuts down.
Common causes for this condition include running the
unit with all access covers removed, obstructed air inlet or
exhaust port, low oil level, or debris in the engine cylinder
cooling fins.
To resolve the problem, let the engine cool down and remove
any accumulated debris and obstructions. Ensure that the
access covers are installed whenever the unit is running.
Transfer Switch Fault (FC_8)
This fault is indicated by fault code FC_8 and eight blinks on
the LED indicator (if transfer switch is equipped with fault
detection). The most likely cause of this fault is a blown fuse
in the transfer switch.
To remedy the problem, contact your installer or a Rheem
Authorized Dealer.
A
16
Generator Maintenance
The generator warranty does not cover items that have been
subjected to operator abuse or neglect. To receive full value
from the warranty, the operator must maintain the system as
instructed in the operator’s manual.
All adjustments should be made at least once each season.
Follow the requirements in the operator’s manual.
Generator maintenance consists of keeping the unit
clean. Operate the unit in an environment where it will
not be exposed to excessive dust, dirt, moisture or any
corrosive vapors. Cooling air louvers on the enclosure
must not become clogged with snow, leaves, or any other
foreign material. To prevent generator damage caused by
overheating, keep the enclosure cooling inlets and outlets
clean and unobstructed at all times.
Check the cleanliness of the unit frequently and clean when
dust, dirt, oil, moisture or other foreign substances are
visible on its exterior/interior surface. Inspect the air inlet
and outlet openings inside and outside the enclosure to
ensure air flow is not blocked.
NOTE: DO NOT use direct spray from a garden hose to
clean generator. Water can enter the engine and generator
and cause problems.
Engine Oil
The system is filled with synthetic oil (API SJ/CF 5W-30W).
This allows for system operation in the widest range of
temperature and climate conditions.
NOTE: The use of synthetic oil does not alter the
required oil change intervals described in the engine
operator’s manual.
Changing Engine Oil and Filter
Remove the two screws from each plastic access cover
and remove both access covers from the two sides of the
generator enclosure.
Changing Oil
1. Place oil drain tube into an approved container.
2. Remove brass plug from tube opposite of engine.
3. When oil has drained, replace brass plug into tube.
4. Slide oil drain tube up into clamp on fuel hose.
CAUTION
Avoid prolonged or repeated skin contact with used
motor oil.
Used motor oil has been shown to cause skin cancer in
certain laboratory animals.
Thoroughly wash exposed areas with soap and water.
•
•
KEEP OUT OF REACH OF CHILDREN. DON’T POLLUTE.
CONSERVE RESOURCES. RETURN USED OIL TO
COLLECTION CENTERS.
Changing Oil Filter
1. Place oil drain tray over tubing and slide it under oil
filter.
2. Follow instructions given in engine operator’s manual
for changing oil filter.
3. Remove oil drain tray from under oil filter and clean up
any spilled oil.
17
To fill your engine with oil:
Follow the synthetic oil grade recommendation and oil fill
instructions given in the engine operator’s manual.
notice
Any attempt to crank or start the engine before it has
been properly serviced with the recommended oil will
result in equipment failure.
Refer to Maintenance and engine manual for oil
fill information.
Damage to equipment resulting from failure to follow this
instruction will void engine and generator warranty.
•
•
Air Filter
The engine for this generator is equipped with a UL
recognized air filter. When servicing the air filter, follow the
instructions given in the engine operators manual. Replace
ONLY with same type UL recognized air filter, P/N 790263.
Battery
Servicing of batteries is to be performed or supervised
by personnel knowledgeable of batteries and the
required precautions. Keep unauthorized personnel away
from batteries.
WARNING
Battery posts, terminals and related
accessories contain lead and lead compounds
- chemicals known to the State of California
to cause cancer and reproductive harm. Wash
hands after handling.
Charging the Battery
If it is necessary to charge the battery, proceed as follows:
1. Set generator’s system switch to OFF.
2. Remove 15 Amp fuse from control panel.
3. Disconnect negative battery cable from negative battery
terminal (indicated by NEGATIVE, NEG, or (-).
notice
Failure to disconnect negative battery cable will result in
equipment failure.
DO NOT attempt to jump start the battery.
Damage to equipment resulting from failure to follow this
instruction will void warranty.
•
•
4. Charge battery with battery charger at 2 Amps until
battery holds 12 Volts.
NOTE: DO NOT exceed 13.7 volts charging.
WARNING
Storage batteries give off explosive hydrogen
gas during recharging.
Slightest spark will ignite hydrogen and
cause explosion.
Battery electrolyte fluid contains acid and is
extremely caustic.
Contact with battery contents will cause severe
chemical burns.
A battery presents a risk of electrical shock and
high short circuit current.
DO NOT dispose of battery in a fire. Recycle battery.
DO NOT allow any open flame, spark, heat, or lit cigarette
during and for several minutes after charging a battery.
DO NOT open or mutilate the battery.
Wear protective goggles, rubber apron, rubber boots and
rubber gloves.
Remove watches, rings, or other metal objects.
Use tools with insulated handles.
•
•
•
•
•
•
NOTE: With the battery installed and utility power available
to the transfer switch, the battery receives a trickle charge
whenever the engine is not running. It may take up to
72 hours to fully charge a battery with the trickle charge.
The trickle charge is not able to recharge a battery that is
completely discharged.
5. Connect negative battery cable to negative battery
terminal (indicated by NEGATIVE, NEG, or (-)).
6. Ensure hardware on both positive and negative battery
terminals is secure.
7. Reinstall 15 Amp fuse in control panel.
CAUTION
Installing the 15A fuse could cause the engine
to start.
DO NOT install this fuse until all plumbing and wiring has
been completed and inspected.
•
8. Set generator’s system switch to AUTO.
9. Reset exercise timer. See Setting Exercise Timer.
18
Servicing the Battery
If it is necessary to service the battery, proceed as follows:
1. Remove “Control Panel” access cover.
2. Set generator’s system switch to OFF.
3. Remove 15 Amp fuse from control panel.
4. Service or replace battery as required.
NOTE: Replace ONLY with same type battery as described in
Battery in Installation.
5. Connect red battery cable to battery positive terminal
(indicated by POSITIVE, POS, or (+)).
6. Connect negative battery cable to negative battery
terminal (indicated by NEGATIVE, NEG, or (-).
7. Ensure hardware on both positive and negative battery
terminals is secure.
8. Reinstall 15 Amp fuse in control panel.
9. Set generator’s system switch to AUTO.
10. Reset exercise timer. See Setting Exercise Timer.
11. Install “Control Panel” access cover.
To Clean the Generator
notice
Improper treatment of generator can damage it and
shorten its life.
DO NOT expose generator to excessive moisture, dust,
dirt, or corrosive vapors.
DO NOT insert any objects through cooling slots.
•
•
• Use a damp cloth to wipe exterior surfaces clean.
• Use a soft, bristle brush to loosen caked on dirt,
oil, etc.
• Use a vacuum cleaner to pick up loose dirt and debris.
• Use low pressure air (not to exceed 25 psi) to blow
away dirt. Inspect cooling air slots and openings on
the generator. These openings must be kept clean
and unobstructed.
When Calling For Assistance
You must have the following information at hand if it is
necessary to contact a local service center regarding service
or repair of this unit:
1. Obtain the unit Model Number and Serial Number from
the unit data decal. See Controls.
2. Obtain the engine Model/Type/Code numbers from the
engine label. See Controls. Please note that the model
number may vary slightly from that presented herein.
Storage
The Rheem / Ruud Residential Generator System is designed
for long term service as a backup generator. As such, there
is no need to take any storage precautions. However, if
it becomes necessary to take the system out of service
for an extended period, call Rheem Technical Services at
(877) 369-9400, between 8:00 AM and 5:00 PM CT for
specific recommendations. Refer to the engine operator’s
manual for further information.
19
Problem Cause Correction
Engine is running, but no AC
output is available.
1. Circuit breaker open or defective.
2. Fault in generator.
3. Poor wiring connections or
defective transfer switch.
1. Reset or replace circuit breaker.
2. Contact local service facility.
3. Check and repair.
Engine runs good at no-load but
“bogs down” when loads are
connected.
1. Short circuit in a connected load.
2. Generator is overloaded.
3. Shorted generator circuit.
4. Fuel Pressure is incorrect.
5. Natural gas fuel mixture is incorrect.
6. Kinked fuel line between regulator
and engine.
1. Disconnect shorted electrical load.
2. See Essential Circuits.
3. Contact local service facility.
4. See Gaseous Fuel System in the
Installation Manual.
5. See Gaseous Fuel System in the
Installation Manual.
6. Remove kink in fuel line. Replace if
necessary.
Engine will not start; or starts
and runs rough.
1. 15 Amp fuse missing or blown.
2. Fuel supply turned off, restricted or
depleted.
3. Failed battery.
4. Clogged air filter.
1. Install (new) 15 Amp fuse. See
System Control Panel.
2. Open fuel valve(s); check propane
tank.
3. Replace battery.
4. Clean or replace air filter.
Engine shuts down during
operation.
1. Fuel supply turned off, restricted or
depleted.
2. Fault indicator blinking.
1. Check fuel valves, fill propane tank.
2. Count blinks and refer to Fault
Detection System.
Loss of power on essential
circuits.
1. Generator circuit breaker is open.
2. Transfer switch problems.
1. Reset circuit breaker.
2. See the transfer switch manual.
Troubleshooting
20
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